Shaping machine



8 Shets-Sheet 1 E. WODETZKY SHAPING MACHINE Filed April 24, 1947 v May2, 195o May 2, 1.950

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HTTTIVEYS Patented May 2, 1950 btit NT OFFICE SHAPING MACHINE ElmerWodetzky, Lynbrook, N. Y.

Application April 24, 1947, Serial No. 743,708

(Cl. Sli-40) 15 Claims. i

This invention relates to shaping machines and more particularly to animproved machine for the contour shaping of elongated articles or Workpieces with precision accuracy and at high production speeds.

In the production of fishing poles and rods, golf club shafts, poles,rods and markers used in sports, and the handles of work tools and otherimplements, the work stock often requires special contour shaping sothat the finished articles possesses the desired utility of artisticcharacteristics. Finished articles which require a particular taper orsurface conformity, or require irregular or varying diametric crosssections, cannot be adeptly turned and shaped on a standard lathe.

This invention is directed to the provision of an improved shapingmachine wherein various elongated articles made from wood, plywood,metal, fibre materials or plastics may be shaped and formed to presentsurface contours of the desired vconformity with precision accuracy.This improved shaping machine is particularly adapted to the contourshaping of shafts, rods, poles and handles to provide a predeterminedtapered or non-conformatory surface contour, with the fnished articlehaving a varying cross section along the axial length of the article, orwherein the cross section of the article is polygonal, off-round,eliptical or multisided to conform to utility or artistic requirements.

An object of this invention is to provide an improved machine for thecontour shaping of elongated articles and Work pieces with precisionaccuracy to the desired predetermined form.

Another object of this invention is to provide an improved shapingmachine for the contour shaping of rods, poles, shafts and handles madefrom metal, wood, plywood or plastics so as to present facing surfacesof any desired sectional form and of varying axial contour or axialtaper.

A further object of this invention is to provide an improved shapingmachine for the contour shaping of various elongated articles which isstrong and sturdy in construction. substantially automatic in operation,which is flexibly adapted to operate on a plurality of work piecessimultaneously, which is adjustably adapted to surface contour thearticles to the desired form with precision accuracy, and which isdelicately responsive to operator control.

Other objects and advantages of this invention will become apparent asthe description proceeds.

The operating parts of this improved machine are mounted upon a suitablebed frame or table having a chuck assembly of improved design fixed tothe head end thereof, the chuck assembly having one or more adjustablechuck elements in which the butt end of the work stock may be removablysecured and clamped in rigid position. Each chuck element may beangularly rotated and is provided with a nut head presenting a pluralityof angularly arranged side faces which may be clamped in position toestablish the cross-sectional shape of the finished work piece duringthe selected shaping stages thereof.

This improved shaping machine also incorpo rates a traveling carriagewhich is power driven along the bed frame of the machine from the headend and to the tail end thereof. The traveling carriage carries andsupports one or more shaping or cutting wheels which may be arranged inpairs so as to simultaneously shape two opposite side faces of the workpiece positioned therebetween during travel of the carriage from thehead end to the tail end of the machine. The paired shaping or cuttingwheels are guided by templet rails during the advance travel of thecarriage, the templet rails being adjustably supported 1ongitudinally ofthe machine and provided with track faces of selected contours whichdetermine and establish the cross-sectional contour to be given to theworked faces of the work piece. The cutting or grinding wheels alsopossess the desired peripheral contour to effect the desired shapeformation of the worked faces of the work pieces in conformity with thefinal contours to be given the finished article.

The traveling carriage also incorporates a pair of pinch rolls which arespring pressed to clamp the work pieces therebetween at a point adjacentthe cutting wheels, thereby to dampen the vibration of the work piecesoperated upon and to provide support for the elongated work piecesextending through the casing structure of the traveling carriage. Thecutting wheels are preferably driven by a motor supported by thecarriage frame to travel therewith. The power supplied to the motor iscontrolled by a power control switch conveniently located at the headend of the machine where the operator is stationed. Means are providedadjacent the tail end of the machine for manipulating the motor controlswitch in a manner to halt the driving motor when the shaping run hasbeen completed at the tail end of the machine, thereby rendering thecutting wheels inoperative during the return travel of the carriage fromthe tail end to the head end of the machine.

The templet rails are provided with raised track sections adjacent thetail end of the machine for causing separation of the spring pressedcutting wheels when the shaping stroke at the tail end of the machinehas been completed. A lever pivotedly mounted on the carriage frame ispro" vided with spaced bearing lugs designed to support the cuttingwheel shafts when spread apart by the raised track sections of thetemplet rails. a coil spring being associated with this lever toautomatically swing the lever into shaft supporting position when thecarriage has arrived at the tail end of the machine. Thus the pairedcutting wheels not only remain idle during the return travel of th-ecarriage, but are spaced apart and out ofcontact witlrthe work piece.positioned therebetween sothat the operatorcan give his attention tothe removal, replacement, or angular orientation of the work pieces uponreturn of the carriage to the head end of the machine.

When the next succeeding shaping stroke` is. to.l be performed, theoperator manually. manipulates a control switch to throw thecutting'wh'eel motor into operation, and thereuponipulls the cutting"wheel supporting lever so as to drop the paired cutting wheels intoshaping engagement'with the oriented work pieces, and the next shapingstroke then proceeds.`

The carriage is propelled by' asecond motor mounted on thefcarr'iageframathis motorhav'- ing a-drivingfconnection with an upper tractionroller and a lower'A traction.rollendesigned to tionrollerffromi.driving, contactl with. the main depressed section. of `thetrack. and. tosimultaneously place the returntraction roller in drivingContact with its. traction rail,=so that'thecarriage assembly isautomatically returned to the head of the machine .when ithascom-pletedi its fullstroke travel yto the tail :endl of .themachina1A. raised track` section is provided at 'the'ihead end of the machinefcrxswn'ging the return traction roller out-of drivingfcont'actwith itsfriction track and for swinging theV advance traction roller intodriving contactwithits-irictiontrack. This drivev shift; however,can-take place only aiter the operator manipulates a` control leverwhich operates 13o-automatically suspendboth traction wheels outofdrivingengagement with their associated friction tracks, toftherebyretain the carriage assembly in residence at the head end ofthefmachineiuntilthe operator desires the next shaping operationYtofcommence.

Although theA characteristic featuresof the .inventionwill beparticularly pointed out inthe claims appendedV hereto; the inventionitself, and the manner in whichit may-be vcarried out, may be betterunderstood by referringtothe-following description'taken in connectionwith'the ac.- companying drawings forminga-partthereof, in which Fig. lis a plan view'ottne vimproved shaping machine illustratinganoperativeeembodiment of this' inventionv and particularly designed forthe shaping of tapered. rods of polygonal .cross .section.

Fi'g.2 is a sideelevationalyiew of the .machine shown' in Fig, .1.A

Fig. 3L is an enlarged. sideelevational view of the travelingcarriageand .associated `driveimechanism, this view also showing a sideelevational View or the chuck assembly and fragmentary parts of thesupporting` structure.

Fig. 3A.is an enlarged side elevational view of th-e traveling carriageas viewed at the opposite side from that shown in Fig. 3.

Fig. 4 is an enlarged transverse cross-sectional View of the travelingcarriage as the same appears when viewed in the drecton'of the arrows-fi of Fig. 3.

Fig. 5 is an enlarged fragmentary cross-sectional view takenhorizontally of the machine as the same would appear when viewed alongline. 5 5 of Fig. 3, this View showing details of the carriage assemblyand carriage drive control mechanism.

Fig. 6 is an enlarged horizontal cross-sectional view of the travelingcarriage and its associated operating meciranism as the same wouldappear when viewed along line 6 6 or Fig. 3, thisview also showing atop` plan view ofA the associated chuck assembly andthe drivingmechanismiA for reciprocating the carriage alongI theA bed frame.

Fig. 7 is a vertical cross-sectional Vview taken longitudinally throughthe carriage and its associated mechanism as the same would. appear whenviewed along line 1 7 of Fig. l.

F'g; 8 is a fragmentary cross-sectional View taken transversely of thetraveling carriage as theV same would appear when viewed along linee-'of Fig; 7.

Fig. 9 is an enlarged elevational View of va Viragmentary part ofr thecarriage driving assembly, including traction rollers and a` fragmentaryportion of the'track, this viewshowing` the return traction rollerindrivingl contact with thetrack.

Fig. '1G Vis an enlarged fragmentary elevational view of certain partsof. the carriagedriving mechanisrn, this view-showing the'traction,rollerslcclred in restpositionandoutaof drivingcon-` tact with thetrack.

Fig, lOA is an enlarged fragmentary cross-seotional view showing oeitainpartsof the carriage driving mechanism as the same would appear whenviewed along line lQA-lfrof Fig. 3.

Fig. 11 is a transverse cross-sectional view through the chuck assemblyas the same would appear vwhen viewed along line ii-I I Voi Fig. 6.

Fig. l2 is a perspective viewi of oneof the chuck elements positioned toreceive the butt? end of the rod to be operated upon.

Fig. '13 isa side elevational View of aV rod of redangular cross sectionas the same may appear prior to insertion into the'shaping machine.

Fig. le is a transverse cross-sectional view of ie unshaped rod as thelsame would appear when viewed along line Illi4 of Fig.' 13.

Fig: 15 is a side elevational view of thevrod-as the same appears afterthe first shapingl operation has been substantially completed andwherein two opposite` faces of the rod have been shaped by the pairedgrindingwheels vto aprecietermined tapered contour.

Fig. 16 is a transverse cross-sectional view of the rod after the firstshaping operation and as the same appearsadjacent the butt end thereofwhen viewed alongline iti-i5 of Figl.

Fig. l? is a transverse cross-sectional view of the rod after the iirstshaping operation and as the same.. appears adjacent the. reduced' endthereof whenviewed along linel'l-H of Fig. l5.

Fig.. 1S. isa side elevational view of the. rod after the second shapingoperation has been substantially completed and whereiny another pair ofopposite faces have been given a tapered contour.

Fig. 19 is a transverse cross-sectional view `of the partially shapedrod adjacent the butt end thereof when viewed. along lineIS--IS of Fig.18,

this view showing the possible irregular hexagonal shape of the rod atthis cross section.

Fig. 20 is a transverse cross-sectional view of the partially shaped rodas the same may appear adjacent the smaller end thereof when viewedalong line 20-20 of Fig. 18.

Fig. 21 is a side elevational view of the rod after substantialcompletion of the third shaping operation, the rod as shown having auniform taper and being hexagonal in cross section.

Fig. 22 is a transverse cross-sectional view adjacent the larger end ofthe hexagonal rod as the same would appear when viewed along line 22-22of Fig, 21, and

Fig. 23 is a transverse cross-sectional View adjacent the reduced end ofthe hexagonal rod as the same appears when viewed along line 23--23 ofFig. 2l.

Similar reference characters refer to similar parts throughout theseveral views of the drawings and specification.

This improved shaping machine is particularly designed for shapingelongated work pieces so that the work piece as fully shaped by themachine presents a uniform polygonal cross section of uniformpredetermined taper extending axially of the work piece. Moreparticularly, the machine is adaptably designed for shaping rods andshafts of any desired diameter and whose outer contours are rectangular,hexagonal, octagonal, decagonal or almost any desired polygonal crosssection having an even number of faces. Such tapered rods and shafts maybe formed from wood, plywood, metal, `fibrous material or plastics. Theshaped shafts and rods find particular application to the manufacture offishing poles and rods, golf club shafts, poles, rods and markers usedin sports, and the handles and shafts of work tools and otherimplements.

To facilitate a better understanding of the construction and operationof the machine, there is shown, in Figs. 13 to 23 inclusive, adiagrammatic illustration of the various functional steps of the machinewhen employed in shaping a rod a R having initially a substantiallyuniform square cross section as shown in Figs. 13 and 14, into a rod R"of uniform taper and of generally hexagcnal cross section as shown inFigs. 2l, 22 and 23. As the first step, the rod R shown in Figs. 13 and14 is placed in the chuck assembly C of the machine and the pairedgrinding wheels in the traveling carriage B are driven by its associateddriving mechanism to grind and shape the two opposite faces a and a tothe desired uniform taper as shown in Figs. 15, 16 and 17. In thisoperation sections marked "x and shown in dotted lines in Figs. 16 and17, will have been removed from the rod R shown in Figs. 13 and 14.

In the second shaping operation, the rod supporting chuck elements arerotated through a 60 angle from the position the chuck elements occupiedduring the first shaping operation shown in Figs. '15, 16 and 17. In thesecond shaping operation the shaped rod R will be produced wherein twoadditional opposite sides b and b will be shaped to a uniformpredetermined taper by removing sections y from the rod as shown inFigs. 19 and 20. The rod will then present two of its opposite faces aand a in tapering relationship, and the second opposite sides b and b'in tapered relationship.

In the third shaping operation the rod supporting chuck elements arerotated a further 60 from its second shaping position, and the pairediii grinding wheels in the traveling carriage B operate to shape a thirdpair of faces c and c' in tapered form to produce a tapered rod R" ofhexagonal cross section as shown in Figs. 21, 22 and 23. In this thirdoperation, sections e of the rod are ground off and removed as indicatedin dotted lines in Figs. 22 and 23. A rod R" of hexagonal cross sectionis thus produced, each of the six sides thereof presenting a uniformpredetermined taper with the rod truly hexagonal in cross section.

It will be appreciated that the illustrative embodiments of theoperating steps shown in Figs. 13 to 23 inclusive are but representativeof the various cross sections which may be given to tapered rods andshafts, it being appreciated that rods and shafts of almost any desiredeven numbered sides of uniform taper may be shaped by a machineconstructed in accordance with the teachings of this invention.

The improved shaping machine as illustrated in the drawings comprises asupporting structure A which supports a traveling carriage B havingdriving mechanism associated therewith designed l to reciprocate thecarriage along the supporting structure A. The carriage assembly Bcontains the grinding mechanism designed to shape the rods or shaftsinto the desired tapered form and of the desired cross-sectional shapeand size. The machine also incorporates a chuck assembly C by means ofwhich the butt ends of the work pieces may be firmly held during theshaping operation. A spray system D is desirably incorporated with themachine to cool the work pieces operated upon and the surfaces of thegrinding wheels in shaping engagement therewith.

The supporting structure A, as shown more particularly in Figs. 1 and 2,comprises a bed frame which may be formed from a pair of parallelextending side rails I and 2 which may be generally angular in crosssection, and a pair of end rails 3 and il which connect the adjacentends of the side rails I and 2 to form a sturdy and rigid supportingframe. The bed frame is supported upon suitable legs 5 of convenientheight. A box shaped supporting structure 'I is mounted on the hea-d endof the bed frame to support the chuck assembly C in elevated positionabove the plane of the bed frame. As shown in Figs. 1, 2, 3 and 11 thisbox-like supporting structure 'I may comprise a pair of spaced verticalside walls 8 and a horizontal top wall 9 to provide a sturdy support forthe chuck assembly C.

The side rails I and 2 of the bed frame present horizontally extendingshelf sections ID and II respectively as shown more particularly in Fig.4, which support a pair of rails I2 which extend substantially the fulllength of the bed frame and upon which the supporting wheels of thecarriage assembly B are free to roll. rihe shelf section I I of the siderail 2 also presents an upper traction surface I3 and a lower tractionsurface I ll along which the upper and lower traction rollers of thecarriage assembly may roll substantially the full length of the bedframe. The side rail I of the bed frame also supports a pair of templaterails I5 and Iii which extend substantially parallel to the side rail Ifor the major length thereof. The template rails I5 and I6 are supportedby a plurality of upright brackets I1, the lower leg I8 of which issecured as by bolts I9 to the horizontal shelf I of the side rail I. Thetemplate rails I5 and I6 present tapered or converging track surfaces 20and 2| aromas respectiveln along which-the rol-1ers of the. upperV and@lower grinder shafts: associated with thel carriage are designed toroll.. The template rails The chuck assembly The chuck assembly C may beconveniently designed to support any desired number of rods or shafts tobe operetedupon. e chuck assembly as shown more particuiaiiy in. Figs.and lfhas three ch elements 25, each having a tubular body 2 presentinga suitable bore 2 into which the buttend of the work piece maybe'inserted and securely held in position by an adjustable set screw 28which may be manipulated to rmly clamp. the butt end oi the work pieceinserted into one end of the tubular body 26e. The chuck assembly has aneck portion 29 extending therefrom whose outer` a head portion The headportici a selected number of side faces wh securing the yoke bar to theontal top wall Q. The yoke bar 32 presen" yoke wall 35 which may haveone or more tran-.cve sely extending slots 3S cut therein, each slot br.shaped to snugly receive the neck portion the chuck element 25. When theneck por of the chuck element When the n tion of the chuck element .ispron. within its slot 3% of the yoke bar 3! of the nut head 353 of thech will snugly and atiy seat against the 'ace of the foot section 33 ofMeans are provided to clamp the nut heads 39 of the chuck elements 25 inany desired rotated position. A. clamp `bar 38 is pivoted by pivot 3G toone end of the yoke bar 3E, the ciamp bar 3S presenting a contact faceiii adapted. to snugly seat against the adjacent side faces Cil.. of thenut heads 3B. Means are provided for retaining the clamp barata inlocked position. The locking means, as shown more partie. i `ly in Figs.3, 3A and 6, may comprise a bracket el having a f oot section i2 thereofsuitably secured as by screws to the horizontal wall s of the box-likesupporting structure l. A pressure nger which is pivoted at one endthereof as by pivot pin to the spaced vertical legs i5 of the bracket4l, 'has a relatively fiat end portion it at the other end thereofadapted to snugly seat against the free end of the clamp bar 33. Meanssuch asa lever handle 49, pivoted at the lower end thereof by hinge pinE@ to the bracket Qi, may be employed to manipulate the pressure ringerfit. The lever d@ is preferably connected to the pres sure finger 43 bya toggle link 5l so that when the lever ad is swung into abutment with astop pin 5.2' projecting from the pressure nger L33, the desiredpressurewill be maintained by the presn sure finger 43 on the clamp bar 38.

As one operating procedure, an unworked rod R will be inserted into eachof the several chuck. elements 25 of thechuck assembly C and securelyclamped therein. In the` first shaping operation,

. it desirable to make the box-like structure the flrstpair offopposite.faces `a and,l a' of. the." rod are shapedV to 'desiredtapen 'Iheclamp4members are then rotated either clockwise orM counter clockwise soVthatthe adjacent face of. the nut head 3i] would seat against thesurface 31 of the foot section 33.*of the yoke bar 32.- The. nut headsare then clamped in this position by the clamp bar 38, and the'secondshaping operation proceeds to. form a second pairV of oppositefaces band b to the desired tapered formi. The nut heads 30 of the clampelements 25 would again be rotated to the next adjacent face thereof toseat against theupper surface 3l of the footV section 33 of the yoke-bar32, the nut heads SIL again being held in this set .position by theclampbar 38. rThe third lshaping operation then pro-l ceeds duringVwhich the faces c and c of the rod, will be shaped to the desired shape,andform. rShe operations above described are continued until all of thedesired polygonal faceso'f the work pieces havel been shaped'to thedesired tapered form, whereupon the'. fully shaped rods would be removedfrom the chuck elements25 and replaced by a, new set of unworked rods orwork pieces R.

The carriage assembly As shown more particularly in, Figs. 4 6, 7 and 8,the operating mechanism of the carriage assembly is contained lwithin orsupported by a box-like structure l designed to bereciprccated along therails I2. The box-like structure 55 mayV be formed of heavy metal pl .tepresenting a pair ofpopposite side walls 5S and El, a topv wall 55;, afront wall GS, a rearwall E@ and a bottom wall (i i the bottom wall 6!preferably extending below' the plane of the bed frame of the'machine.Sinceq it is desirable to apply cooling water to the grind? ing rollersand thev work pieces operated upon, it

55 as a substantially complete enclosure, with the bot-l tom wall 6!thereof having a drain opening throughV which the used water is removed.TheA rear wall 3 8 of the box-like structure 55 has a suitable opening63 therein through `vwhich the work pieces may extend, the front wall 59also having a suitable entrance opening ifi through which the workpieces project into the hoyflike structure 55. To provide for readyaccess to the operating mechanism, the box-lke structure 55 may beprovded with a suitable hinge v cover t5 forming a part of the uppersection thereof which may be hinged to the top wall E5 as by suitablehinges Sii, as shown in Figs. l, 3A and 7.

As shown more particularly in Figs. 3, 3A, 4, 5y and '7, the boX-lkestructure 55 and associated mechanism is supported upon the rails i2 bysuit`- able wheels i'l which may be four in number. The front wheels'lmay bejournaled on journal pins nXed to suitable brackets t@ attached tothe side walls 56l and 5'! of the box-like structure 55. The rear wheels5l are each journaled lupon a journal pin iii suitably fixed to the centside walls 5d and 5l of the box-like structurefii. The box-likestructure 55 and itsassociated mechanism is thus free toV roll back andforth along the track rails i2 which extend'substantially full length ofthe bed frame of the'machine.

The work pieces which are rigidlyheld at the` butt end 4thereof bytherchuck assembly C, project throughthe entrance opening i543 and theexit opening of the box-like structure 55 as the carriage assembly isreciprocated length cf the iisedly held workpieces. The shap-V ingoperation is performed by aT pair of cooperatfl -used, the grindingassembly 15' are paired with the corresponding ing upper and lowergrinding assemblies 15 'and 15' between which the work pieces extend.The upper grinding assembly 15, as shown more particularly in Figs. 6, 7and 8, comprises a barrel body 16 having a sturdy shaft 11 extendingtherethrough. One end of the shaft extends through an opening 15 in theside wall 51 of the box-like structure 55 of the carriage. A drivingpulley 19 ls xed to the extended end of the shaft 11. The other end ofthe shaft 11 extends through a like opening 50 in the side wall 55 ofthe box-like structure 55, and the adjacent extended end of the shaft 11carries a roller 8| designed to roll on the tapered track surface 20 ofthe templet rail l5. The barrel body 16 of the grinding assembly 15carries and supports any desired number of grinding wheels or a widegrinding wheel 82 rigidly fixed thereto. The grinding wheel 82 may beformed from an abrasive which presents a sharp cutting peripheralsurface designed to cut one face of the work piece to the desiredtapered contour.

The lower grinding assembly 15 is substantially similar in form andconstruction to the upper grinding assembly 15 as above described, andpresents a barrel body 15' fixed to the horizontally extending shaft11', one end of which extends through a suitable opening 13 in tlie sidewall 51 of the box-like structure, the projecting end of the shaft 11having a suitable pulley wheel 19' secured thereto. The other end of theshaft 11' projects through an opening 30 in the side wall 55 of thebox-like structure 55, the adjacent extended end of the shaft 11 havinga roller 3|' fixed thereto which has rolling contact with the tractionsurface 2| of template rail |55. The barrel body 16' has any desirednumber of grind- Ving wheels or a single wide grinding wheel fixedthereto which presents a sharp cutting periphery.

In case a plurality of paired grinding wheels are wheels of the grindinggrinding wheels of the grinding assembly 15 so Ythat opposite faces ofthe work pieces extending therebetween are shaped to the desiredcontour. Work pieces R', R and R" shown in cross section in Fig. 8 Aofthe drawings, are merely representative of the cross-sectional shapeswhich can be formed by the paired grinding wheels 82 and 52.

The shaft 11 of the grinding assembly 15 is supported on a pair ofspaced rocker arms 53, one end of each arm carrying a suitable journal2li which embraces the shaft 11 and provides rotating support therefor.The other end of each of the rocker arms 03 aie provided with a suitabletubular collar 55 through which a supporting shaft B6 extends, the endsof the shaft 06 being rotatably journaled in the adjacent side walls 55and 51 of the box-like structure 55. rfhe shaft 11 and grinding wheels52 are thus mounted to have a vertically swinging movement as fulcrumedby the shaft 85', as shown in Figs. 6, '1 and 8.

The rollers and 8 I are maintained in rolling engagement with thecorresponding templet rails i5 and l5 by a coil spring 51 whose ends areconnected to bearing collars 58 and 55 mounted on the shafts 11 and 11respectively. The templet tracks i5 and I5 may be adjusted on theirsupporting brackets I1 to maintain the adjacent peripheries of thepaired grinding Wheels 32 and 32 in predetermined spaced relation asdefined by the adjusted position of the track faces 20 and 2| of thetemplet rails I5 and I6, it being apprel0 ciated that the shape of thetrack faces 20 and 2| and the relative adjusted position thereofdetermines the taper contour to be given to the opposite paired faces ofthe work piece operated upon, as is evident by referring to Figs. 1, 2and 3A.

The paired grinding assemblies 15 and 15 are driven by a driving motormounted upon the top wall 58 of the box-like structure of the carriage.The motor pulley wheel 9| is connected as by drive belt 92 to a pulleywheel 53 xed to a tubular collar 90 rotatably mounted on a stub shaft 95which is rigidly secured to the side wall 51 of the box-like structure55 by a bolt extension 5l?. A secondary pulley Wheel 91 xed to thedriven tubular sleeve 95 is connected by a belt 98 to the pulley wheel19 xed to the shaft 11 of the grinding assembly 15 as shown in Figs. 4and 5. A gear Wheel 59 also fixed to the tubular sleeve 94 is in drivingengagement with a gear wheel |00 xed to a tubular sleeve |5| rotatablymounted on a stub shaft |02 which has a bolt extension |03 which issecured to the side wall 51 of the carriage assembly. The tubular sleevele also has a pulley wheel |05 xed thereto which drives a belt 90 whichis trained over a pulley wheel 19 fixed to the shaft 11'l of thegrinding assembly 15 above described. Thus it will be appreciated thatthe paired grinding wheels 82 and 82 are mechanically driven in unisonin opposite directions, as is evident by referring to l'igs. 2, l ando'.

A pair of pinch roll assemblies |05 and |05 are provided to resilientlygrip the work pieces and thus prevent disturbing vibration thereof asthe work pieces are ground and shaped by the grinding roll assemblies 15and 15 and also to provide support for the work pieces during the returnjourney of the traveling carriage B. The pinch roll assembly |55, asshown more particularly in Figs. 6 and 1, comprises a roll |05 which maybe formed of steel or relatively hard rubber which is fixed to a shaft|01 which extends through elongated slots |00 formed in the side walls55 and 51 of the box-like structure 55 of the reciprocating carriage B.Collars |09 are fixed to the shaft |01 to prevent weaving movementthereof. The lower pinch roll assembly |05 likewise comprises anelongated roll |06 fixed to a shaft |01 whose ends extend throughelongated slots |08' formed in the side walls 55 and 51 of the box-likestructure 55 of the carriage, as shown in Figs. 3A and 8.

The adjacent peripheries of the pinch rolls |05 and |06 are resilientlydrawn toward each other by a pair of coil springs ||0. The ends of eachspring ||0 are secured to bearing collars and embracing the projectingends of the roll shafts |01 and |01 respectively. When the work piecesare inserted between the adjacent peripheries of the pinch rolls |06 and|06', these pinch rolls will be wedged apart by the interleavedthickness of the work pieces, a predetermined roll pressure beingnevertheless exerted against the opposite faces of the work faces by theresilient compression springs H0. The pinch rollers |06 and |05positioned adjacent the paired grinding wheels 82 and B2' aid inpreventing any rotative movement of the work pieces during the grindingoperation, damper any objectionable vibration of the work pieces as theyare being ground to the desired tapered shape, and also serve to supportthe Work pieces during the return journey of the traveling carriage B.

. trained a,r drive chain M trained around a sprocket wheel .|42 xed tothe il Carriage reciprocating mechanism The machine incorporates drivingmechanism yfor automatically reciprocating the carriage assembly rstfrom a position adjacent the chuck assembly C towards the tail' end ofthe bed frame, during which movement the opposite faces of'the workpieces are ground to 'the desired taper, and then to automaticallyreturn the carriage assembly and its associated grinding mechanism tothe starting position adjacent the chuck assembly C. The drivingmechanism comprises' a. motor ||5 mounted upon a shelf which projectsfrom the side wall l of the box-like structure 55 of the reciprocatingcarriage. The pulley wheel of the motor drives the belt ||8 Which istrained around the pulley wheel H9 of a speed reducer unit '|26 asshownm'ore particularly in Fig. 4.

yThe speed reducer vunit |has adriven sprocket has an'upperl arm |32which carries an uppertraction Wheel |33 xed to a'stub shaft |343rotatably mounted-in a bearing collar |35 pro-1` vided at the free endof -the upper arm |32. The lower arm |36 of the Y-army |30 also supportsa lower traction -Wheelrl'l fixed vto a stub shaft Y |38 rotatably-mounted in a bearing collar |39 `provided at thefree endrof thearm |33,as shown -more particularly in Figs. 3, 6,- 9.and 10A.

The driven stub shaft |23 `carries a secondysprocketwheel.,|l|||-iXedthereto over which is `'Ifnechain is also stubshaft |73@ which supports the traction roller |33, and is alsotrained.around. alsprocket wheel m3 fixed to stub shaftl |33 which `supportsthetraction roller -,|3| The motor ||5 thus serves to .drive the tractionrollers |33l and |37 mounted Yon the Yfarrn i3d in the-directionindicated by the arrows as shown in Fig. 9. The traction roller |33 isdesignedto roll along the track face i3,

| adjacentrthe foot end of the .bed frame uponY which Athe uppertraction rolleri is designed to roll, and that the lower Vtrack face I4has a raised tracksection |135 adjacent the head end of the bed frameuponvvh'i'ch the lower traction roller |3l is designed to roll.

The Y-arm '|30 has an upwardly projecting lug section'i5 which maybeformed as an integral part of the bearing boss |3| of the Y-arm |32),

' the lug section |50 having a tapered nose portion |5| designed to haverubbing Contact with a cor Vresponding shaped nose |52 of a springpressed bullet catch |53 which is slidably mounted ona Y bracket |54iixed to the downwardly extending 'flange |25 of the supportingframework. A coil spring |55 'has one end thereof fixed to the bracket|53 by a connecting stud |56, the other end of the coil spring |55 beingin pressing engagement with the adjacent end ofthe bullet catch |53`asrshown more particularly in Figs.` 9, 10 and 10A.

.Whenthe rotating. upper traction rollerL |33 is inv driving contact.with'. the `upper track face 3, the carriageistructure Bandfitsiassociated mech anisin horizontally.advancediroma positionadjacent thechuck assembly C towards the :tail

Yend of the hed trarne.V When the carriage reaches the tail end of the:bed frame, the upper traction roller `|33 will have .rolled onto theraised-...track section idcausing a rocking movement of .the Y-arm i3dAwhich swings thepnose portion |5|`of the if-arm .lng iddfromitsposition on the right hand side .of the nose portion |52 of thebullet catch |53 to the left hand side ,thereof as is evident byreferring toFigsZ, 9 and 10. Thismovement places thelewer tractionroller. i 3i in, driving engagement 4with thelower track face id whichrotates in a direction to return `the earriageassembly B from v.the tailend oi. bed irame'to the head end thereof adjacent the chuck assembly C.When the lower traction roller moves on 'to the raised track section atthe headend of the machine, the nose portion i5| @tithe Y- lug isautomaticallyswung frornits position on the left side ofthe noseportion|52 of the bullet catch |53 to the right hand side thereof. When thisoccurs, the upper` traction rciler |33 would normally be swung intodriving engagement with the track iace i3 so as to immediatelyreturn-the carriage assembly B to the tail end of the machine.

Means are however provided to release-.bly retainboth the upper`traction roller |33 and the jlower traction roller i3? out of YdrivingContact With the respective track faces I3 and i4 so as to givethe'operator an Opportunity 4to reload the chuck assembly with unworkedrodSr or to remove the finally rods therefrom, or to make angularrotation of Ythe chuck elementsj25 of the chuck assemblyv so as topresent another pair of opposite sideV faces of the work pieces to theac- Y tion or the paired grinding wheels EL and 32.

i; il

The retaining means for holding the continuously driven traction wheels|33 andv |37 in neutral suspended position comprises a retractable stoppin |59 which extends through aismoothly fitted bore opening in theVdownwardly extending fiange section 22E of the supporting structure, asshown more lparticularly in Figs. 5, 9 and 10. When the stop pin .ld isin extended position, it provides a stop abutment against which theright hand side of the Y-arrn lug |53, as viewed in Figs. 9 and l0, mayabut to retain ythe uppertraction roller |33 and the lower tractionYroller |37 supi ported by the Y-arrnV |32 in suspended positionstructure.

and out of driving contact with the track faces i3 and i4. v

.The stoppin Midis connected to one end of a manipulating lever 6| as bya stud |62 project- .ing from the stop pin` ll, the stud iti* extendingthrough. an elongated slot V|53 provided :In the end of the lever il.The lever litil isv pivotally snpported by a hinge pin ii V.vhiclfr isiiXedto a bracket L| Vattached..to.the adjacent carriage The'lever armIi is provided with a vconvenient handle |38 ,by means ci which4 thesame be manually manipulatedjto withdraw the stop pin its from itsabutting position against the Y-arrn lug |55. A `coil spring ii'i ispositioned so that the ends thereof abut against the lever "il and theadjacent depending flange sec.. tion |25 oi the supporting structure.The coil spring Il'is held in its mounted'position bya lug pin VV|58extending from the lever arrnii and a lug pin |69 extending from thedepending flange section |26.' The coil `spring'li operates to normallyretainstop-'pin Kia-in extended-V position i3 so that when the lowertraction wheel |37 has rolled onto the raised track section Ult, the Y-arm lug l will abut the stop pin ll! so as to suspend both tractionwheels |33 and I3? out of driving contact with the track faces I3 andELI..

Thus the stop pin itil serves to automatically halt the travelingmovement of the carriage as sembly when the carriage assembly has beenreturned to the head end of the machine adjacent the chuck assembly C.rlhe operator can then methcdically reload, or unload the work pieces,or angularly shift the chuck elements 25, so as to place the work piecesin thorough readiness for the next succeeding shaping operation beforehe manipulates the lever arm iti to withdraw the stop itil. When thestop pin itil is withdrawn, the spring pressed bullet catch |53automatically swings the Yarm lug i553 fully over to the right sidethereof, thus lowering the upper traction wheel i33 into driving contactwith the track face le. When this is accomplished, the carriage assemblywill automatically travel to wards the tail end of the machine, andduring this traveling movement the grinding assemblies 'l5 and 'l5' willcooperate to shape the adjusted opposite side faces of the work `piecesto the desired tapered form. Thus the traction wheels it?, and E37 maybe continuously driven by the driving motor H5 during the time in whichthe ma chine is in production operation.

It is desirable, however, to halt tie rotative movement of the pairedgrinding wheels i313 82 when the carriage assembly has reached the tailend of the machine and the paired grinding wheels 82 and 232 havecompleted their assigned shaping operation at the tip end of the workpieces. As shown more particularly in Fig-s, l, 2, 3 and 6, the drivingmotor Gil is wired to a switch box il@ which is equipped with amanipulating lever lll which may be swung through an angle ofapproximately 120. The manipulatinglever 'il has an elongated slot ilZtherein through which a pin H3 projects, the pin lf3 being xed to theboss portion lillof an elongated manipn ulating rod |15. The rod |215extends longitudin nally of the machine from the head end thereof wherethe switch box l'li is located, to a point adjacent the tail endthereof. rEhe manipulating rod lit is slidably supported by a pair ofspaced brackets ll which are ixed to the side rail l of the machine.

The tail end of the manipulating rod is provided with an angularextension lll which is designed to be engaged by a bracket lug llprojecting from the side wall 5e of the box-like structure 55 of thecarriage. When the carriage assembly reaches the tail end of themachine, the bracket lug i'lil will make contact with the angularextension lll of the manipulating rod so as to swing the manipulatinglever l?! of the switch box llt to the left as niown in Fig. 6, andthereby shut off the current to the motor St. The head end of themanipulating rod iid is provided with a handle extension llt which maybe manually manipulated to swing the manipulating lever Ill of theswitch box Il to the right, as shown in Fig. 6 so as to repower themotor.

Thus it will be appreciated that the paired grinding or cutting wheels82 and lill' are driven by the motor et during the travel of thecarriage assembly from the head end to the tail end of the bed frame,and to the point where the lug bracket |18 associated with the carriageassembly cor1-l tacts the angular extension |11 to manipulate the rod|15 and throw the motor out of operation. The motor 9d is not againthrown into operation by the operator until the carriage assembly hasreturned to the head end of the machine, and only after the work pieceshave been suitably adjusted for the neXt succeeding shaping operation.When the succeeding grinding operation is to be performed, the operatorthrows the switch lever lll to the right as shown in Fig. 6, to powerthe motor Sil and drive the paired grinding wheels 82 and 82', andimmediately thereafter the operator manipulates the lever |6| to placethe upper traction roller E33 in driving contact with the track face |3.

To facilitate removal of the finished work pieces, the insertion ofunworked pieces into the machine, and to make angular adjustment of thework pieces in the machine, it is desirable to pro vide means forseparating the pinch rolls |633 so that the adjacent peripheries thereofare spaced a convenient distance, and for also separating the adjacentperipheries of the paired shaping wheels t2 and 82 a convenient distanceto permit convenient insertion, removal and angular rotation of the workpieces.

Manually operated means are provided for separating the elongated pinchrolls Iii and lS normally resiliently drawn together by the coil springslili, which means may comprise a pair of spaced rocker shoes |89 whichare journaled on stud shafts |8| projecting from the adjacent side walls56 and 51 of the carriage frame strucu ture 55. The upturned nose ends82 of the rocker shoes i8@ are rigidly connected by a transverselyextending rod |83 as shown more particularly in Figs. 2 and 6. Amanually manipulated lever |84 pivotally mounted upon a bracket ltd'fixed to the top wall 9 of the supporting structure i, is provided witha laterally extending lug |85 designed to seat under the connecting rod|83. By manually manipulating the lever lllfl, it will be appreciatedthat the rocker shoes itil may be rocked on their associated stub shaftsitl.

Each of the rocker shoes |82] is connected bya toggle link |86 to theshaft l'l of the upper pinch roll ll, and by a toggle link l' to theshaft liti of the lower pinch roll |05. More particularly, the togglelink |86 is connected at one end thereof by pivot pin |88 to the rockershoe |55, and the other end thereof carries a tubular boss ide whichembraces the shaft |01 of the pinch roll llt. Similarly, the toggle link|87 is connected by pivot pin |88' to the adjacent rocker shoe itil, andby a boss portion 89 to the shaft IGT of the lower pinch roll |06. Itwill be appreciated by referring more particularly to Fig. 3, that whenthe nose ends |82 of the spaced rocker shoes itt are raised as bymanipulating the lever itil, the toggle links Hit` and |81 will spreadthe pinch roll supporting shafts lill and lt'l apart to a convenientdistance to permit substantially unobstructed insertion, removal, andmanipulation of the work pieces between the spaced peripheries of theassociated pinch rolls It and H35.

The grinding wheels 82 and 82 are also spread apart to permit insertion,removal and reorientation of the work pieces Within the carriage asnsembly by a manually manipulated lever ist which is illustrated moreparticularly in Figs. 3 and '7. The lever |90 is rockably mounted on astub shaft 19| projecting from the side wall of the carriage framestructure. The lever itil has a bearing lug |92 projecting from the sideface thereof designed to swing under the shaft l? which supports theupper shaping wheel 5:2. The

sve [isproviedfwith'a'bearinglugieri adjacent the "fendthereof designedto swing overthe'shait 'il' iWhichSuppolvtsfthejlower shaping wheels 'A'coil spring |95 whose endsare Vconnected to the Ufleverl |90 and theadjacent side wallie-E of Y'the adjacent face of the Work-pieces. "tallyextending spray-pipes 230 and2U are conjnected by ariser pipe 22downwardly to a fitting 294 in the side wallie` of the carriageiramecarriage'frame structure, serves'to ynormally refjtainjthe lever |99insubstantially"vertical posi 'tionas shown in Fig. 3. n

lWhen the templet rollersi and Si reach the* taillendery the trackiacesZ and 2 |v ofthe templet rails I5 and `|,`the templet roller 3|rollsV onto a *raised track section |91;` at the end of templet rail i5,and the templet roller Sirolls onto' a 'raised'trackr section `|9V 'ofvternplet 'track asv `"shovvnmore particularly in Figs. 1 and 2. vWhenthe templet rollers 8 i and are positioned upon raised track section ttand 497i respectively', the

fshafts 1l and fil to which-they are attached 'are spread'apart and thepaired shaping Wheels 82 and 82' are also vspread a correspondingdistance `apart. When the grinder shatsi'i and 1i' are *thusyspreadapart, the coil spring 'iiili automatiy'cally swings the leveriiil Vinto substantially vertical position as shown vin Fig. 3, with thebear@ "ing lug |92 ysw'ung'under theshaft ll', vand the zmachine. Whenthework Ypieces havev been 'oriented to the desirednworkingY position,Vthe operator swings the lever |96 to the right as shown linFig's.'3`and 'l so as to Withdraw the bearingl 'lugs |92 Vand |94. thereof fromtheir vshaft supporting positions, permitting the'shafts 'Il and 'Vl'vto be drawn together`by"the coilsprings'! kso that Vthe adjacentperipheralA faces of" the paired grinding wheels 82 and 82 will restlagainst the opposite Vpaired faces of theY work pieces' as oriented.The paired grinding 'wheels82 and'iZ would normally'be' 'dropped intooperating posi-z tion at the head end of the machine aiterthe Y'drivingmotor fis thrown into'operation Vvmanual manipulation of theswitch arm ill.

Water coolingdsse'mby t is appreciated that the'grinding or cuttingconta stof' the paired shaping wheels 82 andf l with the work piecescreates considerable heat, f which, unless dissipated, might damage orburn the' workpieces and disintegrate the shaping wheels. The grindingWheels and 'work pieces are kept cool during 'the' shapingfoperationbywater sprays. vOne' of the waterfsprays is projected against theuppergrinding Wheel 82 and `the'adjacent ground face'of the workpieces ybyahoriaontally extending spray pipe Zilllfhavingl properly locatednozzleholes 2M, therein asshoWnf'rnore particularly in Figs. 'l and 8."A second-spray is projected-by' a lower spray pipe 2M having a seriesofsuitablyY arrangednozzleV openings 28 i therein, arranged to directv thewater spray against the lowergrinding wheels 82 and the The horizonstructure.. yA iiexible hose linev2l'i5l is 'connected to the tting 24at one end'thereo'the'otherend ybeing"connected to a `which maybepositioned on theloor below the le suitable f water pump 2,36

bed frame of the -machine, as shown more particularly in Fig. 2. Thewater-pump is supplied -ivith water by means of a suitable supply pipeZei, and the pumpV 266 may be driven by a motor 20S through a suitablespeed reducer 209.

'A balile plate 2 iii, suspended from the top wall i 5t lof the boxlikestructure 55 ofthe carriage assemblyl B, projects downwardly,7 adjacentthe grinding wheels 32 and S2 to conne the Water -splash and 'redirectsome of the-sprayed water back against the grinding wheels e2 and 82.The baie plate 2id may extend horizontally across the box-1ike structure55 of the carriage assembly, with the ends of the baffle plate 2 Elpositioned closely adjacent to the side walls 5t and 51 therefof. Asillustrated in Fig. 8, the baille plate' 2|!) Yis provided with suitableopenings 2i l therein through which the work pieces may project. The

- sprayed water, after having performed the de- Operation of the machineThis improved shaping machine is at all times under the convenient andflexiblecontrol ofthe operator. Through the simple manipulation of thelever it, the rocker shoes |861 may be manipulated to separate the pinchrolls 1HE and |36 for the convenient insertion, removal or orientationof the work pieces. At the starting position of the carriage assemblyadjacent the head end of the machine, the grinding or carving wheels 32and 82' have been automatically separated 'at the tail end of themachine andl automatically mounted upon the bearing lugs |92 and |94 ofand convenience. The traversing motor ||5 may be continuously operated,with the spring pressed stop pin |555] relied upon to maintain thedriven from c pulls the f traction rollers E33 and |31 rout of drivingengagement with the track faces I3 Yand i4 during residence of thecarriage assembly adjacent the head end oi the machine.

When the has completed his tasklof moun "einovi rienting the work piecesoi :the chuck assembly ning operation to prosion iis to-swing theoperativeV position to drive t the paired grinding or C The operatornext 'lecated- -lever Nil which or cutting Awlueeiswii'l. 'en gageinent`with thework piece. i .U 1' ltaneoiisly', the operator pulls the leverit to withdraw the stop pinv |60 ct with the Ynerm lug |50 therebycausing th-V traction wheel |33 to drop into driving Contact with thetrack face" I3. The

cutting Wh i carriage assembly thereupon' immediately advaricesiorwardtoward the tail end-'ofthe ina- "chine ADui-in Vthe forwardprogress ofthe car- Wheels 82 and 82' progressively shape the pairedopposite faces of the work pieces in accordance with the desiredpredetermined contour and taper, as determined by the peripheral cuttingcontour of the cutting wheels 82 and 82', and as further determined bythe contour of the track face 20 and 2| of the templet rails l5 and It.

When the traveling carriage has traveled to a position towards the tailend of the machine where the rst shaping operation on the work pieceshas been completed, the templet rollers 8| and 8| associated with thegrinder assembly 'i5 and I5 will have rolled onto the raised tracksections |96 and |91' respectively of the templet rails l5 and I6 tothereby separate the shafts 1 1 and il' which support the pairedgrinding or cutting wheels 82 and 32. Thereupon, the coil spring |95automatically swings the lever it forwardly so as to place the bearinglugs It?! and |94 thereof into a position to support the adjacent shafts17 and ll', in which position the paired grinding or cutting wheels 82and 82 are out of contact with the work pieces during the return travelof the carriage assembly to the head end of the machine.

When the rollers 3| and 3| have mounted the raised track sections |95and |97 of the templet rails l5 and I6, the bracket lug llt willsubstantially simultaneously engage the angular extension |77 of themanipulating rod H5 to swing the switch lever IH into cut-01T position,thereby halting the operation of the driving motor 9U which drives thepaired grinding or cutting wheels 82 and d2. Within a split secondthereafter, the continuously driven upper traction wheel |33 will havemounted the raised track section |45, which may be adjustably positionedadjacent the tip end of the work pieces.

When the upper traction wheel |33 has mounted the raised track section|45, the nose portion |5| of the Y-arm lug |50 will be swung to theopposite side of the nose portion |52 oi the bullet catch |53, therebyplacing the continuously driven lower traction wheel |3'i in drivingengagement with the track face I, which driving engagement operates todraw the carriage assembly automatically to the head end of the machine.When the carriage assembly has thus been automatically returned to thehead end of the machine, the operator gives his attention to the desiredorientation of the work pieces. The next operating cycle is executed byrepeating the procedure above described.

A machine constructed in accordance with the principles of thisinvention may be employed to face, 'shape and/or taper rods, shafts, andother elongated work pieces made either of metal, wood, plywood,plastics, or other workable material, t any desired shape, size andform. The machine as shown in the drawings thus represents only oneembodiment of the machine, and is shown for the purpose of conveying amore complete understanding of this invention, and as a typicaladaptation of this invention for the shaping of tapered rods ofpolygonal cross section.

The contour of the track faces 2|] and 2| of the templet rails l and l5may be shaped or adjusted as desired to iix and determine the travelingcontour and cross-sectional shape of the processed work pieces. Theoperating parts of this improved machine may be constructed in anydesired size to operate on work pieces either large or small. The shapedetermining periphery of the paired shaping wheels 82 and 82 can be madeirregular or smooth. concave or convex, or any other desired peripheralshape to effect a ing shaping operation.

predetermined contour formation to the work pieces opertaed upon. Rotaryknife cutters; may be substituted for the abrasive grinding wheels 82and 82', as the work pieces operated upon and the results desired mayrequire. Only a single pair of grinding wheels or rotary cutters may beassociated with the machine, or any desired plurality of grinding wheelsor rotary cutters may be installed in the machine in accordance withproduction schedules and output capacities required.

The chuck assembly C may be provided with any desired number of chuckelements 25 having convenient sockets, with means for detachablyconnecting the butt ends of the work pieces thereto. The nut heads Silthereof may be conveniently provided with polygonal side faces 3|corresponding in number to the side faces to be formed on the iinishedwork pieces. The chuck elements 25 may be angularly rotated and fixed inpredetermined position to accurately determine the side faces to beformed on the nished work pieces, with assurance that all of the nnishedwork pieces will be similar in shape, size and form. A series of chuckelements 25 of diierent forms and with diierent shaped nut heads 30 toshape different classes of work pieces, may be interchangeably insertedand incorporated in the chuck assembly C as desired.

In production operations, a series of Work pieces all in the same stageof shaping production may be mounted in the chuck elements 25, or aseries of work pieces at varying advanced stages of shaping productionmay be mounted in the chuck elements to receive the next succeed- It ishowever, usually preferable to advance a series of work pieces throughthe various shaping stages simultaneously so that nal shaping operationon all the work pieces is complete at the same time.

While certain novel features of the invention have been disclosedherein, and are pointed out in the annexed claims, it will be understoodthat various omissions, substitutions, and changes may be made by thoseskilled in the art without departing from the spirit of the invention.

.. along the bed frame, shaping means associated with the carriage forcontour shaping the Work piece along the axial length thereof, drivingmeans for reciprocating the carriage along the bed frame, and a chuckassembly supported at the head end of the bed frame for detachablysecuring the work piecein a xed position, said chuck assembly includinga chuck element having a socket portion designed to receive the butt endof the work piece, gripping means associated with said socket portionfor detachably securing the work piece thereto, a yoke bar having apocket therein for detachably supporting the chuck element, said chuckelement having a projecting head portion presenting side faces incontour conformity with the intended cross-sectional shape of thefinished work piece, means for supporting said head portion inpredetermined oriented position, and means for releasably clamping saidchuck element in the selected oriented position.

2. An improved machine for the contour shaping of elongated articlesincluding in combination, a bed frame, a traveling carriage movablealong the bed frame, shaping means associated head end` of the bedframefor detachably securing. the work piecesy in fixedV positiomsaidchuck,`

assembly including chuck elements eachhaving afsocket portion designedto receive the buttend. of the workpiece, gripping means associated witheach socket portion for detachably securing the.

work piecelthereto, a yoke-barlhavingypockets therein fordetachablysupportingthe work .piecesA infspacedrelation,l each of y saidchuck elements,I

having aprojecting/headportion presenting. side` faces incontourconiormitywith theintended. cross-,sectional shape-oi the1inislie,c1-work.,-piece, means for supportingsaid.l head portions in,pre.

determined oriented position, andA means for re,- leasably. clampingsaid chuck-elementsy in the. selected Voriented position;

3; An improved machine for'thecontour shaping` ofelongated articles;including in combina. tion; ,airbed' frame, a chuck`assembly*fordetachrV ably supporting: awork piece: in fixed operative.position,L a :traveling carriage-f movable along theA bedirame;driving-V rneansfor advancing the carriager alongthebed frame, said:carriageL having;

a pair of shaping rollers rotatably mounted-on said` carriage; automaticmeans formanipulating said shaping rollers'during travel of theicarriagein accordance' with the con-tour conformity to. the formen-the finishedworkpiece, sai dmeans` including a templet rail extend-ingl longitudi,nallyfalong. the 'bed framepresenting a tracksur. face infcontour4conformityr with the: desiredl shape contour of a face of theVnishedarticle, and guide means?associated with said shapingrollershaving.y guiding Contact with said track surface.

4. An improved machine for the contour shaping ofelongated articlesincluding in combination,fa bed frame, achuck assemblyiorfdetaohablyysupporting. awork piece in fixed operative position, a traveling.carriage movable4 along the bed frame, driving means forV moving the-carriage along lthe. bedv frame, saidQcarriage-having paired shaping wheelsrotatably mounted on said carriage, mea'ns-V for resiliently pressingsaid" shapingwheels into shaping engagement withthe opposite .pairedfaces of the Work piece extending therebetween,- a pair oftemplet railsextending longitudinally along thea bed frame presenting ltrack surfacesin. lcontour conformity with the shape contour oiftheopposite faces fofthe nished iwork piece, andiguidemeans associated; withY saidshapingwheels; having Y' guidingccntact' with said track surfaces:

5.- Anfimproved jmachinefor thezcontour shaping offelongat'ed workpieces including; in;Y combi-1 nation, a' bed frame; a chuckassembly'ior detachably supporting awork piecev in -iixeflopem-vtive-position, a traveling carriage-movable yalong the bed' frame,driving. means: ior'reciprocating the carriagel along the: bed frame,ysaid carriage havingpaired shaping lcuttersfrotatably; mountedonlsaidcarriage, means for resiliently pressing said. shaping: cuttersinto' shaping. engagement Twiththe opposite paired faces ofthe workpiece extending therebetween, a pair of pinch rolls positioned adjacentsaid shaping cutters for resiliently clamping the workpiecetherebetween, apairv of templet'rails/ extending longitudinallyaiongthebed frame presenting trackfsurfaces contour conformity'with theshape contour of. the opposite.l faces of the iinishedwork piece, andguide means associated with said shaping Y Y cutters having guidingcontact with said track surfaces.

6 An improved machine for. the. contour shapc ing oi elongated workpieces including in combination, a, bed frame, a chuck assembly fordetachably supportingr the workpiece in operative position, a travelingcarriage movable along, the bedirame, driving means for reciprocatingthe carriage along the bedV framesaid carriage having paired shapingcutters rotatably mounted on,

said. carriage, means for resilientlypressing said; shaping` cuttersinto shaping engagement,withA the voposite paired faces oi the workpiece ex;v tending therebetween, means for automatically separating,said paired shapingvcutters upon com-. pletion of theadvance shapingstrokeand means for releasably retaining said' shaping ,cuttersL inspaced relation tothe work piece duringtlfie,` return Ytravel of saidcarriage.l

' '7. An improvedmachine for the contour shape ing of elongated articlesincluding in combina, tion,y a. bed frame, a` chuck assembly fordetachably supporting the work piece in xed opera-- tive position, atraveling carriage movable along. thev bed. frame, driving meansiorreciprocating the carriage along the bed frame, said carriage, havingpaired shaping wheels rotatably mounted on said carriage, means forresiliently pressing said shaping wheels into. shaping` engagementwithethe opposite/paired faces of the workpiece extending therebetween,means for separating said paired; Shaping wheelsupon completion of theshapingA stroke, a pivotally mounted leverhaving bearing*v lugsassociated therewith` posi; tioned' toengageand support said pairedshaping wheels in spaced position,l and resilientmeans for retainingsaid wheel supporting lever in wheel supporting position during the.return travel of said carriage.

8; An improved machine for the contour snap--V ingof elongated articlesincluding in combination; a bed frame, a chuck assembly for'detachablysupportingl the work piece in Xed operative position, atravelingcarriage movable along the bed frame,- driving means for reciprocatingthe carriage'along the bed frame, said carriagehaving av pair of workpiece Shapers rotatably-mount edv on said carriage, mea-ns forresiliently pressing saidwork piece Shapers into shaping engagement withthe opposite paired facesof the workpiece extending therebetween,automatic means for manipulating said work piece Shapers during travelof the carriage and in accordance with the contour conformityto beformed'on the work piece, a: driving. motor mountedv on saidcarriage; amotor-control switch supported inV stationary position adjacent thehead'end of said bed' frame, manual means adjacentthe'heady end'of saidbed frame-for'manipulating said control switch-l and means associatedwith said traveling carriage for automatically manipulating Vsaidcontrol switch to halt the driving motor when said carriage hascompleted its shaping stroke.

9. An improved machine forthe contour shaping of'elongated articlesincluding in combination, a bed frame, a chuck assembly for detachablysupporting the work piece in xed operative position, a travelingcarriage movable along the bed frame, driving means for reciprocatingthe carriage alongthe bed frame, said'carriage having work pieceshapersrotatably mounted on saidcarriage, meansrfor rotating Saidworkpiece Shapers, a pair of pinch rolls adjacent said shaping wheelsrotatably supported byV said carriage, means for resiliently clampingthe work piece between said pinch rolls, and means for separating saidpinch rolls when the carriage has returned to the head end of themachine.

10. An improved machine for the contour shaping of elongated articlesincluding in combination, a bed frame, a chuck assembly for detachablysupporting the Work piece in fixed operative position, a lravelingcarriage movable along the bed frame, driving means for reciprocatingthe carriage along the bed frame, said carriage having work pieceShapers rotatably mounted on said carriage, means for rotating said Workpiece Shapers, a pair of pinch rolls adjacent said shaping Wheelssupported by said carriage, means for resiliently clamping the workpiece between said pinch rolls, rocker shoes pivotally mounted on saidcarriage, toggle links operatively connecting said rocker shoes to saidpinch rolls, and means for rocking said rocker shoes to separate saidpnich rolls when the carriage has returned to the head end of themachine.

1l. An improved machine for the contour shaping of elongated articlesincluding in combination, a bed frame, a chuck assembly for detachablysupporting the Work piece in xed operative position, a travelingcarriage movable along the bed frame, work piece shapers mounted on saidcarriage, and driving means for reciprocating the carriage along the bedframe, said driving means including a traction roller rotatably mountedon said carriage positioned to have driving engagement with an advancetraction track extending longitudinally along said bed frame, a secondtraction roller rotatably mounted on said carriage positioned to havedriving engagement with a return traction track extending longitudinallyof said bed frame, and automatic means adjacent the head end of the bedframe and the tail end of the bed frame for alternately shifting saidadvance traction roller and said return traction roller into drivingengagement with its corresponding traction track.

12. An improved machine for the contour shaping of elongated articlesincluding in combination, a bed frame, a chuck assembly for detachablysupporting the Work piece in xed operative position, a travelingcarriage movable along the bed frame, work piece Shapers mounted on saidcarriage, and driving means for reciprocating the carriage along the bedframe, said driving means including a traction roller rotatably mountedon said carriage positioned to have driving engagement with an advancetraction track extending longitudinally along said bed frame, a secondtraction roller rotatably mounted on said carriage positioned to havedriving engagement with the return traction tract extendinglongitudinally of said bed frame, automatic means adjacent the head endof the bed frame and the tail end of the bed frame for alternatelyshifting said advance traction roller and said return traction rollerinto driving engagement with its corresponding traction track, and meansadjacent the head end of the bed frame for releasably retaining saidtraction rollers in inoperative position during residence of thecarriage at the head end of the track.

13. An improved machine for the contour shaping of elongated articlesincluding in combination, a bed frame, a chuck assembly for detachablysupporting the work piece in xed operative position, a travelingcarriage movable along the bed frame, Work piece Shapers mounted on saidcarriage, and driving means for reciprocating the carriage along the bedframe, said driving means including a motor mounted on the carriage, atraction roller rotatably mounted on said carriage positioned to havedriving engagement with an advance traction track extendinglongitudinally along said bed frame, a second traction roller rotatablymounted on said carriage to have driving engagement With the returntraction track extending longitudinally of said bed frame, automaticmeans adjacent the head end of the bed frame and the tail end of the bedframe for alternately shifting said advance traction roller and saidreturn traction roller into driving engagement with its correspondingtraction track, means adjacent the head end. of the bed frame forreleasably retaining said traction tracks in inoperative position duringresidence of the carriage at the head end of the track, and drivingmeans for operatively connecting said driving motor to said tractionrollers.

14. An improved machine for the contour shaping of elongated articlesincluding in combination, a bed frame, a chuck assembly for detachablysupporting the Work piece in xed operative position, a travelingcarriage movable along the bed frame, driving means for reciprocatingthe carriage along the bed frame, Work piece Shapers rotatably mountedon said carriage, a carriage housing enclosing said Work piece Shapers,means for projecting a cooling spray, said spray means including asprinkler device for directing the cooling Water spray adjacent the Workarea, a supply conduit for supplying cooling liquid to said spraydevice, a sump Well .associated With said carriage housing, and meansfor removing the used cooling liquid therefrom.

l5. An improved machine for the contour shaping of elongated articlesincluding in combination, a bed frame, a chuck assembly for detachablysupporting the work piece in xed operative position, a travelingcarriage movable along the bed frame, driving means for reciprocatingthe carriage along the bed frame, work piece Shapers rotatably mountedon said carriage, a carriage housing enclosing said work piece Shapers,means for projecting a cooling spray, said spray means including asprinkler device for directing the cooling spray adjacent the work area,a supply conduit for supplying cooling liquid to said spray device,baiie means Within said carriage housing for conning the projectedspray, a sump Well associated with said carriage housing, and means forremoving the used cooling liquid therefrom.

ELMER WODETZKY.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 1,619,736 Kaufmann et al. Mar. 1,1927 1,864,584 Cowdery June 28, 1932 1,906,739 Carruthers May 2, 19331,966,869 Owen July 17, 1934 2,297,306 Kousin Sept. 29, 1942 2,323,744Wikle July 6, 1943

